Weight Converter
Converting Pounds to Kilograms
Formula
To convert pounds (lbs) to kilograms (kg), you can use the following formula:
So, to convert a weight from pounds to kilograms, you multiply the weight in pounds by 0.45359237.
Example:
If you have 150 lbs and want to convert it to kg:
Use Cases
Health and Fitness
- Weight Tracking: Individuals often track their body weight in kilograms, especially in countries where the metric system is standard.
- Nutritional Information: Food labels and diet plans might require conversions for accurate dietary monitoring.
Travel and Transportation
- Luggage Weight: Airlines often specify baggage weight limits in kilograms.
- Vehicle Specifications: Car manuals might list weights in kilograms.
Science and Industry
- Scientific Research: Data is often recorded in kilograms for consistency with the International System of Units (SI).
- Industrial Weighing: Many industrial scales and systems use kilograms for measurements.
History
The pound has a long history that traces back to Roman times. The modern definition of the pound is based on the avoirdupois system, which was established in the 13th century and is still used in the United States and a few other countries.
The kilogram, part of the metric system, was established in France in 1795 and is defined as the mass of the International Prototype of the Kilogram (IPK), a platinum-iridium alloy cylinder stored in Sèvres, France. The metric system and the kilogram were adopted as part of an effort to standardize measurements across different regions and industries.
The relationship between pounds and kilograms is officially recognized by international agreement, ensuring that conversions are consistent worldwide.
Quick Reference Table
| Pounds (lbs) | Kilograms (kg) |
|---|---|
| 1 | 0.45359237 |
| 10 | 4.5359237 |
| 50 | 22.6796 |
| 100 | 45.3592 |
| 200 | 90.7185 |
By using the conversion factor , you can easily convert any weight from pounds to kilograms.